Update Quickstart abstract (#4205)

* Move info on installer to section on running the installer

You don't need to know the details of the installer when you start
reading the guide.

* Update Quickstart abstract

* Make quickstart installer procedure shorter

Author: aneta-petrova

guides/common/modules/proc_running-installer.adoc

@@ -3,9 +3,10 @@
 [id="running-the-{project-context}-installer_{context}"]
 = Running the {Project} installer
 
-The installation run is non-interactive, but the configuration can be customized by supplying any of the options listed in `{foreman-installer} --help`, or by running `{foreman-installer} -i` for interactive mode.
-More examples are described in the `Installation Options` section.
-The `-v` option disables the progress bar and displays all changes.
+The Foreman installer is a collection of Puppet modules that installs {Project} based on native operating system packages.
+
+The installation run is non-interactive by default.
+The script displays its progress and writes logs to `{installer-log-file}`.
 
 .Procedure
 * Run the {Project} installer:
@@ -14,5 +15,5 @@ The `-v` option disables the progress bar and displays all changes.
 ----
 # {installer-scenario}
 ----
-
-The script displays its progress and writes logs to `{installer-log-file}`.
++
+For a list of the available customization options, run `{foreman-installer} --help` or `{foreman-installer} --full-help`.

guides/doc-Quickstart/master.adoc

@@ -7,11 +7,8 @@ include::common/header.adoc[]
 
 = {QuickstartDocTitle}
 
-The Foreman installer is a collection of Puppet modules that installs everything required for a full working Foreman setup.
-It uses native operating system packaging (`.rpm` or `.deb` packages) and adds necessary configuration for the complete installation.
-
-Components include the Foreman web UI, Smart Proxy, a Puppet server, TFTP, DNS and DHCP servers.
-It is configurable and the Puppet modules can be read or run in "no-op" mode to see what changes it will make.
+This guide describes the quickest way to get a {ProjectServer} up and running.
+For a full installation guide, see {InstallingServerDocURL}[_{InstallingServerDocTitle}_].
 
 include::common/modules/ref_supported-operating-systems.adoc[leveloffset=+1]